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2021-04-15scsi: mpt3sas: Fix two kernel-doc headersBart Van Assche1-2/+2
Fix the following warnings: drivers/scsi/mpt3sas/mpt3sas_base.c:5430: warning: Excess function parameter 'ct' description in '_base_allocate_pcie_sgl_pool' drivers/scsi/mpt3sas/mpt3sas_base.c:5493: warning: Excess function parameter 'ctr' description in '_base_allocate_chain_dma_pool' Link: https://lore.kernel.org/r/20210415220826.29438-10-bvanassche@acm.org Fixes: d6adc251dd2f ("scsi: mpt3sas: Force PCIe scatterlist allocations to be within same 4 GB region") Fixes: 7dd847dae1c4 ("scsi: mpt3sas: Force chain buffer allocations to be within same 4 GB region") Cc: Sathya Prakash <sathya.prakash@broadcom.com> Cc: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: fcoe: Suppress a compiler warningBart Van Assche1-1/+1
Suppress the following compiler warning: warning: cast to smaller integer type 'enum fip_mode' from 'void *' [-Wvoid-pointer-to-enum-cast] enum fip_mode fip_mode = (enum fip_mode)kp->arg; ^~~~~~~~~~~~~~~~~~~~~~ Link: https://lore.kernel.org/r/20210415220826.29438-9-bvanassche@acm.org Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: libfc: Fix a format specifierBart Van Assche1-1/+1
Since the 'mfs' member has been declared as 'u32' in include/scsi/libfc.h, use the %u format specifier instead of %hu. This patch fixes the following clang compiler warning: warning: format specifies type 'unsigned short' but the argument has type 'u32' (aka 'unsigned int') [-Wformat] "lport->mfs:%hu\n", mfs, lport->mfs); ~~~ ^~~~~~~~~~ %u Link: https://lore.kernel.org/r/20210415220826.29438-8-bvanassche@acm.org Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: aacraid: Remove an unused functionBart Van Assche1-5/+0
This was detected by building the kernel with clang and W=1. Link: https://lore.kernel.org/r/20210415220826.29438-7-bvanassche@acm.org Cc: aacraid@microsemi.com Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: core: Introduce enum scsi_dispositionBart Van Assche6-38/+42
Improve readability of the code in the SCSI core by introducing an enumeration type for the values used internally that decide how to continue processing a SCSI command. The eh_*_handler return values have not been changed because that would involve modifying all SCSI drivers. The output of the following command has been inspected to verify that no out-of-range values are assigned to a variable of type enum scsi_disposition: KCFLAGS=-Wassign-enum make CC=clang W=1 drivers/scsi/ Link: https://lore.kernel.org/r/20210415220826.29438-6-bvanassche@acm.org Cc: Christoph Hellwig <hch@lst.de> Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Daniel Wagner <dwagner@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: core: Modify the scsi_send_eh_cmnd() return value for the SDEV_BLOCK caseBart Van Assche1-1/+1
The comment above scsi_send_eh_cmnd() says: "Returns SUCCESS or FAILED or NEEDS_RETRY". This patch makes all values returned by scsi_send_eh_cmnd() match the documentation of this function. This change does not affect the behavior of scsi_eh_tur() nor of scsi_eh_try_stu() nor of the scsi_request_sense() callers. See also commit bbe9fb0d04b9 ("scsi: Avoid that .queuecommand() gets called for a blocked SCSI device"; v5.3). Link: https://lore.kernel.org/r/20210415220826.29438-5-bvanassche@acm.org Cc: Christoph Hellwig <hch@lst.de> Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Daniel Wagner <dwagner@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: core: Rename scsi_softirq_done() into scsi_complete()Bart Van Assche1-3/+7
Commit 320ae51feed5 ("blk-mq: new multi-queue block IO queueing mechanism"; v3.13) introduced a code path that calls the blk-mq completion function from interrupt context. scsi-mq was introduced by commit d285203cf647 ("scsi: add support for a blk-mq based I/O path."; v3.17). Since the introduction of scsi-mq, scsi_softirq_done() can be called from interrupt context. That made the name of the function misleading, rename it to scsi_complete(). Link: https://lore.kernel.org/r/20210415220826.29438-4-bvanassche@acm.org Cc: Christoph Hellwig <hch@lst.de> Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Daniel Wagner <dwagner@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: core: Make the scsi_alloc_sgtables() documentation more accurateBart Van Assche1-2/+5
The current scsi_alloc_sgtables() documentation does not accurately explain what this function does. Hence improve the documentation of this function. Link: https://lore.kernel.org/r/20210415220826.29438-2-bvanassche@acm.org Cc: Christoph Hellwig <hch@lst.de> Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Daniel Wagner <dwagner@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: pm80xx: Remove global lock from outbound queue processingViswas G3-5/+9
Introduce spin lock for outbound queue. With this, driver need not acquire HBA global lock for outbound queue processing. Link: https://lore.kernel.org/r/20210415103352.3580-9-Viswas.G@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Ashokkumar N <Ashokkumar.N@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: pm80xx: Reset PI and CI memory during re-initializationViswas G2-0/+4
Producer index(PI) outbound queue and consumer index(CI) for Outbound queue are in DMA memory. During resume(), the stale PI and CI Values will lead to unexpected behavior. These values should be reset to 0 during driver reinitialization. Link: https://lore.kernel.org/r/20210415103352.3580-8-Viswas.G@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Ashokkumar N <Ashokkumar.N@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: pm80xx: Completing pending I/O after fatal errorRuksar Devadi6-7/+65
When controller runs into fatal error, I/Os get stuck with no response, handler event is defined to complete the pending I/Os (SAS task and internal task) and also perform the cleanup for the drives. Link: https://lore.kernel.org/r/20210415103352.3580-7-Viswas.G@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ashokkumar N <Ashokkumar.N@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: pm80xx: Add sysfs attribute to track iop1 countVishakha Channapattan1-0/+23
A new sysfs variable 'ctl_iop1_count' is being introduced that tells if the controller is alive by indicating controller ticks. If on subsequent run we see the ticks changing that indicates that controller is not dead. Using the 'ctl_iop1_count' sysfs variable we can see ticks incrementing: linux-9saw:~# cat /sys/class/scsi_host/host*/ctl_iop1_count 0x00000069 0x0000006b 0x0000006d 0x00000072 Link: https://lore.kernel.org/r/20210415103352.3580-6-Viswas.G@microchip.com Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Vishakha Channapattan <vishakhavc@google.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Ashokkumar N <Ashokkumar.N@microchip.com> Signed-off-by: Radha Ramachandran <radha@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: pm80xx: Add sysfs attribute to track iop0 countVishakha Channapattan1-0/+22
A new sysfs variable 'ctl_iop0_count' is being introduced that tells if the controller is alive by indicating controller ticks. If on subsequent run we see the ticks changing that indicates that controller is not dead. Using the 'ctl_iop0_count' sysfs variable we can see ticks incrementing: linux-9saw:~# cat /sys/class/scsi_host/host*/ctl_iop0_count 0x000000a3 0x000001db 0x000001e4 0x000001e7 Link: https://lore.kernel.org/r/20210415103352.3580-5-Viswas.G@microchip.com Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Vishakha Channapattan <vishakhavc@google.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Ashokkumar N <Ashokkumar.N@microchip.com> Signed-off-by: Radha Ramachandran <radha@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: pm80xx: Add sysfs attribute to track RAAE countVishakha Channapattan1-0/+22
A new sysfs variable 'ctl_raae_count' is being introduced that tells if the controller is alive by indicating controller ticks. If on subsequent run we see the ticks changing in RAAE count that indicates that controller is not dead. Using the 'ctl_raae_count' sysfs variable we can see ticks incrementing: linux-9saw:~# cat /sys/class/scsi_host/host*/ctl_raae_count 0x00002245 0x00002253 0x0000225e Link: https://lore.kernel.org/r/20210415103352.3580-4-Viswas.G@microchip.com Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Vishakha Channapattan <vishakhavc@google.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Ashokkumar N <Ashokkumar.N@microchip.com> Signed-off-by: Radha Ramachandran <radha@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: pm80xx: Add sysfs attribute to check controller hmi errorVishakha Channapattan1-0/+22
A new sysfs variable 'ctl_hmi_error' is being introduced to give the error details if the MPI initialization fails Using the 'ctl_hmi_error' sysfs variable we can check the error details: linux-2dq0:~# cat /sys/class/scsi_host/host*/ctl_hmi_error 0x00000000 0x00000000 0x00000000 Link: https://lore.kernel.org/r/20210415103352.3580-3-Viswas.G@microchip.com Signed-off-by: Vishakha Channapattan <vishakhavc@google.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: pm80xx: Add sysfs attribute to check MPI stateVishakha Channapattan1-1/+31
A new sysfs variable 'ctl_mpi_state' is being introduced to check the state of MPI. Using the 'ctl_mpi_state' sysfs variable we can check the MPI state: linux-2dq0:~# cat /sys/class/scsi_host/host*/ctl_mpi_state MPI is successfully initialized Link: https://lore.kernel.org/r/20210415103352.3580-2-Viswas.G@microchip.com Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Vishakha Channapattan <vishakhavc@google.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Ashokkumar N <Ashokkumar.N@microchip.com> Signed-off-by: Radha Ramachandran <radha@google.com> Signed-off-by: kernel test robot <lkp@intel.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: qla2xxx: Reserve extra IRQ vectorsRoman Bolshakov1-2/+2
Commit a6dcfe08487e ("scsi: qla2xxx: Limit interrupt vectors to number of CPUs") lowers the number of allocated MSI-X vectors to the number of CPUs. That breaks vector allocation assumptions in qla83xx_iospace_config(), qla24xx_enable_msix() and qla2x00_iospace_config(). Either of the functions computes maximum number of qpairs as: ha->max_qpairs = ha->msix_count - 1 (MB interrupt) - 1 (default response queue) - 1 (ATIO, in dual or pure target mode) max_qpairs is set to zero in case of two CPUs and initiator mode. The number is then used to allocate ha->queue_pair_map inside qla2x00_alloc_queues(). No allocation happens and ha->queue_pair_map is left NULL but the driver thinks there are queue pairs available. qla2xxx_queuecommand() tries to find a qpair in the map and crashes: if (ha->mqenable) { uint32_t tag; uint16_t hwq; struct qla_qpair *qpair = NULL; tag = blk_mq_unique_tag(cmd->request); hwq = blk_mq_unique_tag_to_hwq(tag); qpair = ha->queue_pair_map[hwq]; # <- HERE if (qpair) return qla2xxx_mqueuecommand(host, cmd, qpair); } BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] SMP PTI CPU: 0 PID: 72 Comm: kworker/u4:3 Tainted: G W 5.10.0-rc1+ #25 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.0.0-prebuilt.qemu-project.org 04/01/2014 Workqueue: scsi_wq_7 fc_scsi_scan_rport [scsi_transport_fc] RIP: 0010:qla2xxx_queuecommand+0x16b/0x3f0 [qla2xxx] Call Trace: scsi_queue_rq+0x58c/0xa60 blk_mq_dispatch_rq_list+0x2b7/0x6f0 ? __sbitmap_get_word+0x2a/0x80 __blk_mq_sched_dispatch_requests+0xb8/0x170 blk_mq_sched_dispatch_requests+0x2b/0x50 __blk_mq_run_hw_queue+0x49/0xb0 __blk_mq_delay_run_hw_queue+0xfb/0x150 blk_mq_sched_insert_request+0xbe/0x110 blk_execute_rq+0x45/0x70 __scsi_execute+0x10e/0x250 scsi_probe_and_add_lun+0x228/0xda0 __scsi_scan_target+0xf4/0x620 ? __pm_runtime_resume+0x4f/0x70 scsi_scan_target+0x100/0x110 fc_scsi_scan_rport+0xa1/0xb0 [scsi_transport_fc] process_one_work+0x1ea/0x3b0 worker_thread+0x28/0x3b0 ? process_one_work+0x3b0/0x3b0 kthread+0x112/0x130 ? kthread_park+0x80/0x80 ret_from_fork+0x22/0x30 The driver should allocate enough vectors to provide every CPU it's own HW queue and still handle reserved (MB, RSP, ATIO) interrupts. The change fixes the crash on dual core VM and prevents unbalanced QP allocation where nr_hw_queues is two less than the number of CPUs. Link: https://lore.kernel.org/r/20210412165740.39318-1-r.bolshakov@yadro.com Fixes: a6dcfe08487e ("scsi: qla2xxx: Limit interrupt vectors to number of CPUs") Cc: Daniel Wagner <daniel.wagner@suse.com> Cc: Himanshu Madhani <himanshu.madhani@oracle.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Nilesh Javali <njavali@marvell.com> Cc: Martin K. Petersen <martin.petersen@oracle.com> Cc: stable@vger.kernel.org # 5.11+ Reported-by: Aleksandr Volkov <a.y.volkov@yadro.com> Reported-by: Aleksandr Miloserdov <a.miloserdov@yadro.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: smartpqi: Fix device pointer variable reference static checker issueDon Brace1-1/+1
Dan Carpenter found a possible NULL pointer dereference issue in function pqi_sas_port_add_rphy(): drivers/scsi/smartpqi/smartpqi_sas_transport.c:97 pqi_sas_port_add_rphy() warn: variable dereferenced before check 'pqi_sas_port->device' (see line 95) Correct issue by moving reference of pqi_sas_port->device after the check for the device pointer being non-NULL. Link: https://www.mail-archive.com/kbuild@lists.01.org/msg06329.html Link: https://lore.kernel.org/r/161850493026.7302.10032784239320437353.stgit@brunhilda Fixes: ec504b23df9d ("scsi: smartpqi: Add phy ID support for the physical drives") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Scott Benesh <scott.benesh@microchip.com> Reviewed-by: Scott Teel <scott.teel@microchip.com> Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com> Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-15scsi: smartpqi: Fix blocks_per_row static checker issueDon Brace1-2/+6
Dan Carpenter found a possible divide by 0 issue in the smartpqi driver in functions pci_get_aio_common_raid_map_values() and pqi_calc_aio_r5_or_r6(). The variable rmd->blocks_per_row is used as a divisor and could be 0. Using rmd->blocks_per_row as a divisor without checking it for 0 first. Correct these possible divide by 0 conditions by insuring that rmd->blocks_per_row is not zero before usage. The check for non-0 was too late to prevent a divide by 0 condition. Add in a comment to explain why the check for non-zero is necessary. If the member is 0, return PQI_RAID_BYPASS_INELIGIBLE before any division is performed. Link: https://lore.kernel.org/linux-scsi/YG%2F5kWHHAr7w5dU5@mwanda/ Link: https://lore.kernel.org/r/161850492435.7302.392780350442938047.stgit@brunhilda Fixes: 6702d2c40f31 ("scsi: smartpqi: Add support for RAID5 and RAID6 writes") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Scott Benesh <scott.benesh@microchip.com> Reviewed-by: Scott Teel <scott.teel@microchip.com> Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com> Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: ibmvfc: Fix invalid state machine BUG_ON()Brian King1-19/+38
This fixes an issue hitting the BUG_ON() in ibmvfc_do_work(). When going through a host action of IBMVFC_HOST_ACTION_RESET, we change the action to IBMVFC_HOST_ACTION_TGT_DEL, then drop the host lock, and reset the CRQ, which changes the host state to IBMVFC_NO_CRQ. If, prior to setting the host state to IBMVFC_NO_CRQ, ibmvfc_init_host() is called, it can then end up changing the host action to IBMVFC_HOST_ACTION_INIT. If we then change the host state to IBMVFC_NO_CRQ, we will then hit the BUG_ON(). Make a couple of changes to avoid this. Leave the host action to be IBMVFC_HOST_ACTION_RESET or IBMVFC_HOST_ACTION_REENABLE until after we drop the host lock and reset or reenable the CRQ. Also harden the host state machine to ensure we cannot leave the reset / reenable state until we've finished processing the reset or reenable. Link: https://lore.kernel.org/r/20210413001009.902400-1-tyreld@linux.ibm.com Fixes: 73ee5d867287 ("[SCSI] ibmvfc: Fix soft lockup on resume") Signed-off-by: Brian King <brking@linux.vnet.ibm.com> [tyreld: added fixes tag] Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> [mkp: fix comment checkpatch warnings] Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Copyright updates for 12.8.0.9 patchesJames Smart4-4/+4
Update copyrights to 2021 for files modified in the 12.8.0.9 patch set. Link: https://lore.kernel.org/r/20210412013127.2387-17-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Update lpfc version to 12.8.0.9James Smart1-1/+1
Update lpfc version to 12.8.0.9 Link: https://lore.kernel.org/r/20210412013127.2387-16-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Eliminate use of LPFC_DRIVER_NAME in lpfc_attr.cJames Smart1-10/+10
During code inspection, several cases of creating a dynamic attribute names in logs messages using a define was found. This is unnecessary. Place the native symbol name in the log messages. Link: https://lore.kernel.org/r/20210412013127.2387-15-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Standardize discovery object logging formatJames Smart6-19/+19
Code inspection showed lpfc was using three different pointer formats when logging discovery object pointers. Standardize the pointer format to x%px. Note: %px use is limited to discovery objects in order to aid core analysis. Link: https://lore.kernel.org/r/20210412013127.2387-14-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Fix various trivial errors in comments and log messagesJames Smart5-22/+21
Clean up minor issues spotted by tools and code review: - Spelling Errors - Spurious characters and errors in function headers - nvme_info wqerr and err fields source data reversed - Extraneous new line in log message 0466 - Spacing error in log message 0109 - Messages 0140 and 0141 have portname and nodename reversed - Incorrect function labelling in comment Link: https://lore.kernel.org/r/20210412013127.2387-13-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Remove unsupported mbox PORT_CAPABILITIES logicJames Smart4-313/+3
SLI-4 does not contain a PORT_CAPABILITIES mailbox command (only SLI-3 does, and SLI-3 doesn't use it), yet there are SLI-4 code paths that have code to issue the command. The command will always fail. Remove the code for the mailbox command and leave only the resulting "failure path" logic. Link: https://lore.kernel.org/r/20210412013127.2387-12-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Fix lpfc_hdw_queue attribute being ignoredJames Smart1-3/+11
The lpfc_hdw_queue attribute is to set the number of hardware queues to be created on the adapter. Normally, the value is set to a default, which allows the hw queue count to be sized dynamically based on adapter capabilities, CPU/platform architecture, or CPU type. Currently, when lpfc_hdw_queue is set to a specific value, is has no effect and the dynamic sizing occurs. The routine checking whether parameters are default or not ignores the lpfc_hdw_queue setting and invokes the dynamic logic. Fix the routine to additionally check the lpfc_hdw_queue attribute value before using dynamic scaling. Additionally, SLI-3 supports only a small number of queues with dedicated functions, thus it needs to be exempted from the variable scaling and set to the expected values. Link: https://lore.kernel.org/r/20210412013127.2387-11-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Fix missing FDMI registrations after Mgmt Svc loginJames Smart2-14/+20
FDMI registration needs to be performed after every login with the FC Mgmt service. The flag the driver is using to track registration is cleared on link up, but never on Mgmt service logout/re-login. Fix by clearing the flag whenever a new login is completed with the FC Mgmt service. While perusing the flag use, logging was performed as if FDMI registration occurred on vports. However, it is limited to the physical port only. Revise the logging to reflect physical port based. Link: https://lore.kernel.org/r/20210412013127.2387-10-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Fix silent memory allocation failure in lpfc_sli4_bsg_link_diag_test()James Smart1-1/+3
In the unlikely case of a failure to allocate an LPFC_MBOXQ_t structure, no return status is set, thus the routine never logs an error and returns success to the callee. Fix by setting a return code on failure. Link: https://lore.kernel.org/r/20210412013127.2387-9-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Fix use-after-free on unused nodes after port swapJames Smart1-0/+18
During target port swap, the swap logic ignores the DROPPED flag in the nodes. As a node then moves into the UNUSED state, the reference count will be dropped. If a node is later reused and moved out of the UNUSED state, an access can result in a use-after-free assert. Fix by having the port swap logic propagate the DROPPED flag when switching nodes. This will avoid reference from being dropped. Link: https://lore.kernel.org/r/20210412013127.2387-8-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Fix error handling for mailboxes completed in MBX_POLL modeJames Smart3-56/+70
In SLI-4, when performing a mailbox command with MBX_POLL, the driver uses the BMBX register to send the command rather than the MQ. A flag is set indicating the BMBX register is active and saves the mailbox job struct (mboxq) in the mbox_active element of the adapter. The routine then waits for completion or timeout. The mailbox job struct is not freed by the routine. In cases of timeout, the adapter will be reset. The lpfc_sli_mbox_sys_flush() routine will clean up the mbox in preparation for the reset. It clears the BMBX active flag and marks the job structure as MBX_NOT_FINISHED. But, it never frees the mboxq job structure. Expectation in both normal completion and timeout cases is that the issuer of the mbx command will free the structure. Unfortunately, not all calling paths are freeing the memory in cases of error. All calling paths were looked at and updated, if missing, to free the mboxq memory regardless of completion status. Link: https://lore.kernel.org/r/20210412013127.2387-7-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Fix lack of device removal on port swaps with PRLIsJames Smart1-3/+1
During target port-swap testing with link flips, the initiator could encounter PRLI errors. If the target node disappears permanently, the ndlp is found stuck in UNUSED state with ref count of 1. The rmmod of the driver will hang waiting for this node to be freed. While handling a link error in PRLI completion path, the code intends to skip triggering the discovery state machine. However this is causing the final reference release path to be skipped. This causes the node to be stuck with ref count of 1 Fix by ensuring the code path triggers the device removal event on the node state machine. Link: https://lore.kernel.org/r/20210412013127.2387-6-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Fix NMI crash during rmmod due to circular hbalock dependencyJames Smart3-46/+30
Remove hbalock dependency for lpfc_abts_els_sgl_list and lpfc_abts_nvmet_ctx_list. The lists are adaquately synchronized with the sgl_list_lock and abts_nvmet_buf_list_lock. Link: https://lore.kernel.org/r/20210412013127.2387-5-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Fix reference counting errors in lpfc_cmpl_els_rsp()James Smart1-63/+1
Call traces are being seen that result from a nodelist structure ref counting error. They are typically seen after transmission of an LS_RJT ELS response. Aged code in lpfc_cmpl_els_rsp() calls lpfc_nlp_not_used() which, if the ndlp reference count is exactly 1, will decrement the reference count. Previously lpfc_nlp_put() was within lpfc_els_free_iocb(), and the 'put' within the free would only be invoked if cmdiocb->context1 was not NULL. Since the nodelist structure reference count is decremented when exiting lpfc_cmpl_els_rsp() the lpfc_nlp_not_used() calls are no longer required. Calling them is causing the reference count issue. Fix by removing the lpfc_nlp_not_used() calls. Link: https://lore.kernel.org/r/20210412013127.2387-4-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Fix crash when a REG_RPI mailbox fails triggering a LOGO responseJames Smart2-3/+0
Fix a crash caused by a double put on the node when the driver completed an ACC for an unsolicted abort on the same node. The second put was executed by lpfc_nlp_not_used() and is wrong because the completion routine executes the nlp_put when the iocbq was released. Additionally, the driver is issuing a LOGO then immediately calls lpfc_nlp_set_state to put the node into NPR. This call does nothing. Remove the lpfc_nlp_not_used call and additional set_state in the completion routine. Remove the lpfc_nlp_set_state post issue_logo. Isn't necessary. Link: https://lore.kernel.org/r/20210412013127.2387-3-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Fix rmmod crash due to bad ring pointers to abort_iotagJames Smart4-17/+21
Rmmod on SLI-4 adapters is sometimes hitting a bad ptr dereference in lpfc_els_free_iocb(). A prior patch refactored the lpfc_sli_abort_iocb() routine. One of the changes was to convert from building/sending an abort within the routine to using a common routine. The reworked routine passes, without modification, the pring ptr to the new common routine. The older routine had logic to check SLI-3 vs SLI-4 and adapt the pring ptr if necessary as callers were passing SLI-3 pointers even when not on an SLI-4 adapter. The new routine is missing this check and adapt, so the SLI-3 ring pointers are being used in SLI-4 paths. Fix by cleaning up the calling routines. In review, there is no need to pass the ring ptr argument to abort_iocb at all. The routine can look at the adapter type itself and reference the proper ring. Link: https://lore.kernel.org/r/20210412013127.2387-2-jsmart2021@gmail.com Fixes: db7531d2b377 ("scsi: lpfc: Convert abort handling to SLI-3 and SLI-4 handlers") Cc: <stable@vger.kernel.org> # v5.11+ Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: isci: Remove unnecessary struct declarationWan Jiabing1-1/+0
struct sci_phy_proto was already defined on line 142. The declaration here is unnecessary. Remove it. Link: https://lore.kernel.org/r/20210406105913.676746-1-wanjiabing@vivo.com Signed-off-by: Wan Jiabing <wanjiabing@vivo.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: qla4xxx: Remove unneeded if-null-free checkQiheng Lin1-18/+9
Eliminate the following coccicheck warning: drivers/scsi/qla4xxx/ql4_os.c:4175:2-7: WARNING: NULL check before some freeing functions is not needed. drivers/scsi/qla4xxx/ql4_os.c:4196:2-7: WARNING: NULL check before some freeing functions is not needed. drivers/scsi/qla4xxx/ql4_os.c:4215:2-7: WARNING: NULL check before some freeing functions is not needed. drivers/scsi/qla4xxx/ql4_os.c:6400:2-7: WARNING: NULL check before some freeing functions is not needed. drivers/scsi/qla4xxx/ql4_os.c:6402:2-7: WARNING: NULL check before some freeing functions is not needed. drivers/scsi/qla4xxx/ql4_os.c:6555:2-7: WARNING: NULL check before some freeing functions is not needed. drivers/scsi/qla4xxx/ql4_os.c:6557:2-7: WARNING: NULL check before some freeing functions is not needed. drivers/scsi/qla4xxx/ql4_os.c:7838:2-7: WARNING: NULL check before some freeing functions is not needed. drivers/scsi/qla4xxx/ql4_os.c:7840:2-7: WARNING: NULL check before some freeing functions is not needed. Link: https://lore.kernel.org/r/20210409120345.6447-1-linqiheng@huawei.com Signed-off-by: Qiheng Lin <linqiheng@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: qla2xxx: Reuse existing error handling pathChristophe JAILLET1-2/+2
There is no need to duplicate code, use the existing error handling path to free resources. This is more future-proof. Link: https://lore.kernel.org/r/6973844a1532ec2dc8e86f3533362e79d78ed774.1618132821.git.christophe.jaillet@wanadoo.fr Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: qla2xxx: Remove unneeded if-null-free checkQiheng Lin1-4/+2
Eliminate the following coccicheck warning: drivers/scsi/qla2xxx/qla_os.c:4622:2-7: WARNING: NULL check before some freeing functions is not needed. drivers/scsi/qla2xxx/qla_os.c:4637:3-8: WARNING: NULL check before some freeing functions is not needed. Link: https://lore.kernel.org/r/20210409120925.7122-1-linqiheng@huawei.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Qiheng Lin <linqiheng@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: mpt3sas: Fix out-of-bounds warnings in _ctl_addnl_diag_queryGustavo A. R. Silva2-11/+6
Fix the following out-of-bounds warnings by embedding existing struct htb_rel_query into struct mpt3_addnl_diag_query, instead of duplicating its members: include/linux/fortify-string.h:20:29: warning: '__builtin_memcpy' offset [19, 32] from the object at 'karg' is out of the bounds of referenced subobject 'buffer_rel_condition' with type 'short unsigned int' at offset 16 [-Warray-bounds] include/linux/fortify-string.h:22:29: warning: '__builtin_memset' offset [19, 32] from the object at 'karg' is out of the bounds of referenced subobject 'buffer_rel_condition' with type 'short unsigned int' at offset 16 [-Warray-bounds] The problem is that the original code is trying to copy data into a bunch of struct members adjacent to each other in a single call to memcpy(). All those members are exactly the same contained in struct htb_rel_query, so instead of duplicating them into struct mpt3_addnl_diag_query, replace them with new member rel_query of type struct htb_rel_query. So, now that this new object is introduced, memcpy() doesn't overrun the length of &karg.buffer_rel_condition, because the address of the new struct object _rel_query_ is used as destination, instead. The same issue is present when calling memset(), and it is fixed with this same approach. Below is a comparison of struct mpt3_addnl_diag_query, before and after this change (the size and cachelines remain the same): $ pahole -C mpt3_addnl_diag_query drivers/scsi/mpt3sas/mpt3sas_ctl.o struct mpt3_addnl_diag_query { struct mpt3_ioctl_header hdr; /* 0 12 */ uint32_t unique_id; /* 12 4 */ uint16_t buffer_rel_condition; /* 16 2 */ uint16_t reserved1; /* 18 2 */ uint32_t trigger_type; /* 20 4 */ uint32_t trigger_info_dwords[2]; /* 24 8 */ uint32_t reserved2[2]; /* 32 8 */ /* size: 40, cachelines: 1, members: 7 */ /* last cacheline: 40 bytes */ }; $ pahole -C mpt3_addnl_diag_query drivers/scsi/mpt3sas/mpt3sas_ctl.o struct mpt3_addnl_diag_query { struct mpt3_ioctl_header hdr; /* 0 12 */ uint32_t unique_id; /* 12 4 */ struct htb_rel_query rel_query; /* 16 16 */ uint32_t reserved2[2]; /* 32 8 */ /* size: 40, cachelines: 1, members: 4 */ /* last cacheline: 40 bytes */ }; Also, this helps with the ongoing efforts to globally enable -Warray-bounds and get us closer to being able to tighten the FORTIFY_SOURCE routines on memcpy(). Link: https://github.com/KSPP/linux/issues/109 Link: https://lore.kernel.org/lkml/60659889.bJJILx2THu3hlpxW%25lkp@intel.com/ Link: https://lore.kernel.org/r/20210401162054.GA397186@embeddedor Build-tested-by: kernel test robot <lkp@intel.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: qedf: Use devlink to report errors and recoveryJaved Hasan1-2/+3
Use devlink_health_report() to push error indications. Implement this in qede via a callback function to make it possible to reuse it for other drivers sitting on top of qed in future. Also remove forcible recovery trigger and put it as a normal devlink callback in qed module. This allows user to enable/disable it via: devlink health set pci/xxxx:xx:xx.x reporter fw_fatal auto_recover false Link: https://lore.kernel.org/r/20210331164917.24662-3-jhasan@marvell.com Signed-off-by: Javed Hasan <jhasan@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: qedf: Enable devlink supportJaved Hasan2-0/+14
Devlink instance lifetime was linked to qed_dev object. That caused devlink to be recreated on each recovery. Change it by making higher level driver (qede) responsible for lifetime management. This way devlink survives recoveries. qede now stores devlink structure pointer as a part of its device object, devlink private data contains a linkage structure, qed_devlink. Link: https://lore.kernel.org/r/20210331164917.24662-2-jhasan@marvell.com Signed-off-by: Javed Hasan <jhasan@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: sni_53c710: Add IRQ checkSergey Shtylyov1-1/+4
The driver neglects to check the result of platform_get_irq()'s call and blithely passes the negative error codes to request_irq() (which takes *unsigned* IRQ #s), causing it to fail with -EINVAL (overridden by -ENODEV further below). Stop calling request_irq() with the invalid IRQ #s. Link: https://lore.kernel.org/r/8f4b8fa5-8251-b977-70a1-9099bcb4bb17@omprussia.ru Fixes: c27d85f3f3c5 ("[SCSI] SNI RM 53c710 driver") Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: sun3x_esp: Add IRQ checkSergey Shtylyov1-1/+3
The driver neglects to check the result of platform_get_irq()'s call and blithely passes the negative error codes to request_irq() (which takes *unsigned* IRQ #), causing it to fail with -EINVAL, overriding the real error code. Stop calling request_irq() with the invalid IRQ #s. Link: https://lore.kernel.org/r/363eb4c8-a3bf-4dc9-2a9e-90f349030a15@omprussia.ru Fixes: 0bb67f181834 ("[SCSI] sun3x_esp: convert to esp_scsi") Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: jazz_esp: Add IRQ checkSergey Shtylyov1-1/+3
The driver neglects to check the result of platform_get_irq()'s call and blithely passes the negative error codes to request_irq() (which takes *unsigned* IRQ #), causing it to fail with -EINVAL, overriding the real error code. Stop calling request_irq() with the invalid IRQ #s. Link: https://lore.kernel.org/r/594aa9ae-2215-49f6-f73c-33bd38989912@omprussia.ru Fixes: 352e921f0dd4 ("[SCSI] jazz_esp: converted to use esp_core") Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: hisi_sas: Fix IRQ checksSergey Shtylyov1-3/+3
Commit df2d8213d9e3 ("hisi_sas: use platform_get_irq()") failed to take into account that irq_of_parse_and_map() and platform_get_irq() have a different way of indicating an error: the former returns 0 and the latter returns a negative error code. Fix up the IRQ checks! Link: https://lore.kernel.org/r/810f26d3-908b-1d6b-dc5c-40019726baca@omprussia.ru Fixes: df2d8213d9e3 ("hisi_sas: use platform_get_irq()") Acked-by: John Garry <john.garry@huawei.com> Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: ufs: ufshcd-pltfrm: Fix deferred probingSergey Shtylyov1-1/+1
The driver overrides the error codes returned by platform_get_irq() to -ENODEV, so if it returns -EPROBE_DEFER, the driver would fail the probe permanently instead of the deferred probing. Propagate the error code upstream as it should have been done from the start... Link: https://lore.kernel.org/r/420364ca-614a-45e3-4e35-0e0653c7bc53@omprussia.ru Fixes: 2953f850c3b8 ("[SCSI] ufs: use devres functions for ufshcd") Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-12scsi: snic: Convert to DEFINE_SHOW_ATTRIBUTE()dingsenjie1-19/+1
Use DEFINE_SHOW_ATTRIBUTE() macro to simplify the code. Link: https://lore.kernel.org/r/20210331065326.18804-1-dingsenjie@163.com Signed-off-by: dingsenjie <dingsenjie@yulong.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-12scsi: ufs: ufs-qcom: Remove redundant dev_err() call in ufs_qcom_init()Ye Bin1-6/+1
There is a error message within devm_ioremap_resource() already, so remove the dev_err() call to avoid redundant error message. Link: https://lore.kernel.org/r/20210409075522.2111083-1-yebin10@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Ye Bin <yebin10@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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